نتایج جستجو برای: gravity anomaly

تعداد نتایج: 100927  

1998
Shoichi ICHINOSE

The general structure of the conformal anomaly and the dilaton’s effect to the anomaly are analysed. First we give a new formal proof of the statement that the conformal anomaly, in the theory which is conformal invariant at the classical level, is conformal invariant. The heat-kernel regularization and Fujikawa’s method are taken for the analysis. We present a new explicit result of the confor...

1998
Mitsuo Abe

The conformal-gauge two-dimensional quantum gravity is formulated in the framework of the BRS quantization and solved completely in the Heisenberg picture: All n-point Wightman functions are explicitly obtained. The eld-equation anomaly is shown to exist as in other gauges, but there is no other subtlety. At the critical dimension D = 26 of the bosonic string, the eld-equation anomaly is shown ...

1996
I. L. Buchbinder A. Yu. Petrov

A new N = 1 superfield model in D = 4 flat superspace is suggested. This model describes dynamics of chiral compensator and can be treated as a low-energy limit of D = 4, N = 1 quantum superfield supergravity. Renormalization structure of this model is studied and one-loop counterterms are calculated. It is shown that the theory is infrared free. An effective action for the model under consider...

1996
I. L. Buchbinder A. Yu. Petrov

A new N = 1 superfield model in D = 4 flat superspace is suggested. This model describes dynamics of chiral compensator and can be treated as a low-energy limit of D = 4, N = 1 quantum superfield supergravity. Renormalization structure of this model is studied and one-loop counterterms are calculated. It is shown that the theory is infrared free. An effective action for the model under consider...

2008
J. Kowalski

We construct the regularised Wheeler–De Witt operator demanding that the algebra of constraints of quantum gravity is anomaly free. We find that for a subset of all wavefunctions being integrals of scalar densities this condition can be satisfied. We proceed to finding exact solutions of quantum gravity being of the form of functionals of volume and average curvature of compact three-manifold.

Journal: :Int. J. Applied Earth Observation and Geoinformation 2015
S. K. Pal T. J. Majumdar

The gravity field and derivatives generated with the high resolution EIGEN-6C2 gravity model which includes satellite gravity data of GOCE (Gravity field and steady-state Ocean Circulation Explorer) has been utilized for geological appraisal of the Singhbhum-Orissa Craton, India. The GOCE only field gravity data and in situ gravity data of the same area have been utilized for comparative assess...

2017
Gia Dvali

We show that the assumption of non-zero topological susceptibility of the vacuum in a fermion-free version of a theory, such as gravity or QCD, suffices to conclude the following: Once Nf massless fermion flavors are added to the theory, they break the chiral flavor symmetry dynamically, down to a subgroup that would be anomaly-free under gauging; In both theories, the pseudo-Goldstone correspo...

2012
J. C. Andrews

Introduction: Although a significant fraction the mascon gravity anomalies can be explained by the flexural support of the mare basalts within the basins, in some cases this explanation does not suffice. A number of the lunar basins exhibit mascons in excess of that which can be accounted for by the maria, and some basins possess central gravity anomalies yet lack mare fill altogether [1]. An e...

2002
Coşkun Sari

The primary objective of a gravity survey over a sedimentary basin is to delineate the shape of the basin. To fulfill this objective, information is needed about the densities within the sedimentary section. Densities of sedimentary rocks increase with depth (mainly due to compaction), approaching that of the basement in deep basins. Sedimentary basins are generally associated with low gravity ...

Journal: :journal of mining and environment 2015
m. fakhrerad a. nejati kalateh s. ghomi

coastal fars gravimetry project in fars province was carried out to find the buried salt domes and to determine characteristics of faults in this area. the lavarestan structure was covered by 4203 gravimetry stations in a regular grid of 1000*250 m. depth structural model of this anticline made in previous studies was based on geological evidences and structural geology measurements. in order t...

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